Lib.rs

cain_ls

Goal 1

1. get curr directory
2. get all files in curr directory
3. display above files

Goal 2

1. make executable

Goal 3

1. Adjust all blank spaces of the file name equally

Goal 4

1. Color varies depending on the file type.

Goal 5

1. -a, -l options specified and even created a help command
2. -a: display all files including hidden files
3. -l: display file information
   1. to retrieve user, group name implement later

Goal 6

1. refactoring